These products are widely applied in petroleum, chemical, paper-making, electric power, construction, and medicineaameet ASTM st Features:1) O.D.: 114 - 1220mm2) W.T.: 1 - 25mm (we can also produce other specifications according to customers' requirements)3) Grades: 201, 202, 304, 304L, 310S, 316, 316L, 321, customers' requests available4) Standards: ASTM (ASME)5) Applications:a) Petroleum ...